2025 Macan EV: electrical errors and undriveable vehicle

[porschemacanev4S]

Hi everyone,

I wanted to share an issue I experienced and see if anyone else has encountered something similar.

I have a 2025 Macan EV with about 10,000 miles. Last night the car was charging at home on AC using the included Porsche mobile charger connected to a NEMA 14-50 outlet. During the charging session, I received a notification from the Porsche app that charging was interrupted.

When I went to check the car, it was displaying multiple system and electrical errors. I let the car sit overnight, but the next morning the errors were still present and the car was not drivable:

• Unable to shift into Drive or Reverse, only Park and Neutral
• Multiple electrical systems not functioning properly (Electronic door mechanisms, interior lighting, etc…)
• Charging still unavailable

The vehicle had to be towed to the Porsche service center.

One additional data point that may or may not be related: around the same time charging stopped, the NEMA 14-50 outlet had lost power. My building maintenance later noted that several breakers had tripped in the garage and needed to be reset. After power was restored, the outlet worked again, but the car did not recover and continued to show the same errors.

The car is currently at Porsche for diagnosis. I am curious if other Macan EV owners have experienced:

• Charging interruptions followed by widespread electrical errors
• Loss of Drive or Reverse selection
• Power steering assist failures
• Issues related to AC charging, power interruptions, or the 12V or DC-DC systems

It appears that there may have been a brief minor power outage in the garage of my building which caused charging to be interrupted, with the car being unable to recover. If this ends up being the case it’s extremely concerning - EVs must be able to recover from any kind of charging interruption. The possibility that my car was bricked due to this is a serious issue that makes me really worried about owning this car.

I will update the thread once the dealer provides more information. Any similar experiences or insights would be appreciated.

Thanks in advance.

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[porschemacanev4S]

Update:

Dealer confirmed the issue is a Central High Voltage Box failure. Parts are coming from Germany, so due to the holidays they’re estimating mid to late January for the repair.

They did get me into an EV loaner, which I appreciate, but it’s a base RWD Macan EV vs my Macan 4S, so I’m definitely missing things like InnoDrive / active lane keeping.

Trying to stay patient, but being without my own car for weeks due to a major HV failure on a new vehicle is frustrating. Curious if anyone else has dealt with long repair timelines like this and whether Porsche offered any goodwill or support afterward.

Will keep the thread updated.

 

[FirstEV]

Update:

Dealer confirmed the issue is a Central High Voltage Box failure. Parts are coming from Germany, so due to the holidays they’re estimating mid to late January for the repair.

They did get me into an EV loaner, which I appreciate, but it’s a base RWD Macan EV vs my Macan 4S, so I’m definitely missing things like InnoDrive / active lane keeping.

Trying to stay patient, but being without my own car for weeks due to a major HV failure on a new vehicle is frustrating. Curious if anyone else has dealt with long repair timelines like this and whether Porsche offered any goodwill or support afterward.

Will keep the thread updated.

You might want to check my forum thread...

 

[Petzi]

Update:

Dealer confirmed the issue is a Central High Voltage Box failure. Parts are coming from Germany, so due to the holidays they’re estimating mid to late January for the repair.

They did get me into an EV loaner, which I appreciate, but it’s a base RWD Macan EV vs my Macan 4S, so I’m definitely missing things like InnoDrive / active lane keeping.

Trying to stay patient, but being without my own car for weeks due to a major HV failure on a new vehicle is frustrating. Curious if anyone else has dealt with long repair timelines like this and whether Porsche offered any goodwill or support afterward.

Will keep the thread updated.

are you aware that a malfunction of the electrical system in your garage most likely caused the problem? ( at least I would insist that an electrical engineer have a look) you get the car repaired, get an other car. what more do you expect?

 

[Yves]

are you aware that a malfunction of the electrical system in your garage most likely caused the problem? ( at least I would insist that an electrical engineer have a look) you get the car repaired, get an other car. what more do you expect?

I would think the opposite is true, the onboard charger shorted and let the power trip in the building …
Chances of a building failure are way less then an onboard charger going bad.
Now if there is a known issue with the power lines that is another story, but those should be filtered out by the AC charger …

 

[porschemacanev4S]

I would think the opposite is true, the onboard charger shorted and let the power trip in the building …
Chances of a building failure are way less then an onboard charger going bad.
Now if there is a known issue with the power lines that is another story, but those should be filtered out by the AC charger …

Yeah, I’m not sure if the car caused the breaker to trip, or if a brief power outage caused it to trip. It doesn’t really matter either way - I’ve had the car for less than a year and only 10,000 miles. EV’s must be able to recover or handle these kind of events. The fact that the car is fried because of this is extremely concerning and pretty outrageous for a $100k+ car.

I don’t have much confidence in the car anymore. Even after it’s repaired (whenever that finally happens) I will still have this event in the back of my mind. It’s a shame because I love the car and it’s been relatively problem-free so far…but I won’t look at it the same way after this.

 

[Petzi]

Yeah, I’m not sure if the car caused the breaker to trip, or if a brief power outage caused it to trip. It doesn’t really matter either way - I’ve had the car for less than a year and only 10,000 miles. EV’s must be able to recover or handle these kind of events. The fact that the car is fried because of this is extremely concerning and pretty outrageous for a $100k+ car.

I don’t have much confidence in the car anymore. Even after it’s repaired (whenever that finally happens) I will still have this event in the back of my mind. It’s a shame because I love the car and it’s been relatively problem-free so far…but I won’t look at it the same way after this.

oh my god! that’s dramatic.

 

[porschemacanev4S]

oh my god! that’s dramatic.

Not really - it’s an expensive car that failed after 10,000 miles. Your reply is not helpful. Get a life.

 

[Petzi]

Not really - it’s an expensive car that failed after 10,000 miles. Your reply is not helpful. Get a life.

all this whining how „expensive“ this car was. i cant hear this anymore. its like everyone here has spent more than 50G on a car the first time in life. its the cheapest porsche. you will get it repaired for free, you get an loaner. buy an tesla for 70G if you think you can „trust it“ better.

 

[Yves]

Yeah, I’m not sure if the car caused the breaker to trip, or if a brief power outage caused it to trip. It doesn’t really matter either way - I’ve had the car for less than a year and only 10,000 miles. EV’s must be able to recover or handle these kind of events. The fact that the car is fried because of this is extremely concerning and pretty outrageous for a $100k+ car.

I don’t have much confidence in the car anymore. Even after it’s repaired (whenever that finally happens) I will still have this event in the back of my mind. It’s a shame because I love the car and it’s been relatively problem-free so far…but I won’t look at it the same way after this.

I had 2 onboard failures with my XC90 T8 hybrid, it‘s just a fact of live that these electrical systems are prone to external factors that you can protect against but the over engineering and cost do not justify the case.

Cars fail and that is just a fact, I think being on this forum gives the wrong idea of how reliable the car is, people tend to come to these when there are issues

 

[TomekGnomek]

If it was THAT easy to brick you car by just having the power cut during charging I think we would have discovered a perfect way out for all those dissatisfied with their cars - just brick them this way, return to Porsche and have them replaced as lemons /s

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